Box-scraper.



J/ LOBMILLER. BOX SGRAPER.

APPLICATION FILED JULY 23,1906.

I ATTBRIJFY PATENTED MAR. s, 1908.

UNITED srarns earner err-inn.

JOHN LOBMI'LLER, OF WELLSBURG, WEST VIRGINIA.

nox scaarnn.

Application tiled July 253906. Serial 110327.270.

- To all wlzomitma y concem:

Be it known that I, Jo1-n\ LGBMILLER, 'a-

citizen of the United States of America, and resident of Viellsburg, county of Brooke,

and State of ,VVest Virginia, have invented certam new and useful Improvements n Box Scrapers, of which the following is a specifica,v

employment with revers ble and interchangeable scraping-blades.

. A further object 1S to provide woodscraping blade the construction of whichissuch that it is particularly adapted for into a wood surface. I r 4 \Yith these and other objects mum, the invention finally consists in the particular construction, arrangement and combination of parts which will hereinafter be fully de terminates in a downwardly and rearwardly tion; Fig. blade-holding portion of the stock and the scribed, reference being herein had to the accompanying drawings, forming a part of th1sspec1hcat1on, in which- Figure 1 is a-perspective view of the inven- 2 1s a vertical sectional View of the blade; Fig. 3 is asimilar view of the stock withthe blade removed; Fig; 4 is a front elevation of the scraping-blade; and 1? 1g. 5 1s a vertical sectional view of said blade.

Referring to said drawings, in which like reference numerals designate like parts throughout the several views1 indicates a stock or handle which may be of any suitable shape or constructionhaving' its front end reduced in size and downwardly curved,

constituting a neck or shank 2. Said shank directed head 3 which has two transversely extended, alined, communicating slots {end 5 through the end thereof, forming a pair of clamping jaws 6' 6, between which a scraplng blade 7, is held by. means of a screw 8 pro-:

jected through said heath-as shown. The

lower slot 4 is made of a width, Whi'ch-will' readily accommodate said blade 7,wh1le the up er made narrower n- Wm th. An inclined bearing-shoulder 9 1S formed at the up per extremity of" the lower slot is preferably Specification of Letters QE'atentg Eatented March 3, 1908.

- slot 4, or at the point where the two slots 4 and 5 merge, against which the face of the bevel 10 leading to the extremejupper edge 11 of the blade 7 is adapted to bearor rest,

the said edge 11 lying inthe narrowenor upper, slot 5 out of bearing contact or engagement with surfaces whereby the said edge might be injured.

Said blade 7 is re versible, as shown, opposite edges llhbeing I channels 13, said channels being made to extendback any desired distance from the extreme edge 11 of the blade. The bevel 10 (merges with said grooves or channels 13, forming said \!shaped fnotches, 'theapices of which are sharp; Further, the side edges .ot' the teeth formed by notchi-ng the edge of the blade are sharp instead of blunt, as

would be the case if saidnotches were 1 down in sharpening,

formed. by cutting directly through the beveled edge of the blade.

The notches 12 not only admirably adapt the edge of the blade for taking into the wood but the shape and extremely limited length of said notches also prevent the gouging and splintering of the wood which would be consequent were deep notches employed in the edge of the blade. When the blade is ground the notches are not ground out onaccount oi the longitudinal grooves or channels l3'extending back a considerable distance from the edge.

The screw 8 is projected through the jaws 6 at a right angle to the slot 5 at point, sufficiently remote from the upper end ofthe slot l to avoid contact with the edge of the blade held by said jaws. The jaws normally stand apart a sufficient distance to admit of the ready. insertion of the blade, and the shank-and jaws aremade of a material which is sufficiently resilient to admitof said jaws being sprung together into clamping engageinent with the blade.

' laying thus described m invention, 'wh at i I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a Stock having its front end downwardly and rearwardly curved, of a head having two transverse intercomniumcating ahned slots therein, thelower of said slot-s having a greater receiving capacity than the upper slot, a bearing shoulder at the upper extremity of. the lower slot, a removable blade having its opposite edges beveled, said blade being mounted in said lower slot with the face of the bevel of the upper edge in bearing engagement with said shoulder, and the extreme edge, or cutting edge, lying in the upper slot, and means for clamping said blade in place.

2. The combination with a blade-holding a substantial front edge on the teeth in the line of the edge of the blade, and the teeth having their lateral edges sharpened to the apicesof the notches.

3. A scraping-blade having a beveled cutting edge, the bevel of which is on one side only of said edge, said blade having on the side op osite the bevel a plurality of spaced paralle grooves or channels which merge slightly above the cutting edge with said bevel, said grooves bein -so spaced as to form alternate teeth and V-shaped serrations in said edge, each tooth having a substantial front edge in the line of the edge of the blade, and having sharpened lateral edges extending to the apiees of the serrations, said cutting edge of the blade being adapted for successive grindings or sharpenings on the beveled side without lessening the depth of said serrations.

at. A scraping-blade having a plain unbeveled. face in which is provided a plurality of longitudinal grooves extending to the lower edge of the blade, the sides of said rooves being disposed in corresponding reation to the surface of the blade, a cutting edge formed by-a bevel on the face of the bladeopposite the grooves, said grooves bein so spaced as to leave teeth, each having a su stantial front edge in the line of theedge of the blade, and said grooves forming V- shaped notches which adapt'said edge for taking into a wooden surface.

v5. A scraping-blade having a plain unbeveled side in which is provided a pluralitv of longitudinal grooves or channels \-;hieh ex- ,tend to the lower edge of the blade and the 'S1(l.S of which stand in correspondnig r'ela tion to the surface of the blade. said blade having a bevel on the face thereof opposite to said grooved side, which bevel constitutes a cutting edge of said lower edge. of the blade and V-shape'd notches in said edge at the,

points where-said grooves merge therewith, said grooves being so spaced as to leave teeth. each of which has a substantial front edge .in the line of the edge of the blade.

6. A scraping-blade having a ting edge, the bevel of which is on one side only of said edge, said blade having on the side opposite the bevel a plurality, of spared parallel grooves whose sides are disposed in corresponding-relationto the surface, of said blade, said grooves merging with said bevel and forming V-shaped notches in said edge.

each of the teeth formed bvt-he notehing of the beveled edge of the blade having asui;- stantial front edge in the line of the edge of the blade and having their lateral edges sharpened to the apices of the notches.

In testimony whereof I athx. my signature in presence ot two subscribing 'w itnesses.

3 Bronx LoBirIuac-a.

Witnesses ELLERY Er .oRTnEX, C. Gr. Bvcngmax.

neveled cut- 

